Stackable chair



FIG. 1 is a top plan view of a stackable chair showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof from the left of FIG. 2;

FIG. 4 is a top, front and side perspective view thereof;

FIG. 5 is a side elevational view thereof from the right of FIG. 2; and,

FIG. 6 is a rear elevational view thereof. 

The ornamental design for a stackable chair, as shown. 